Slim line commercial grade 1 door closer with cover. 2 million cycles. Adjustable size 1-6. Fits doors from 2'' to 5'' width. Tri-packed for regular, top jamb & parallel arm applications. Adjustable spring tension. Sweep & latch valves.• 800 series• 12816 slim line commercial grade 1• Chassis/Closer: Cast aluminum• Handing: Non-handed• Mounting: Tri-Pack - regular, top jamb and parallel arm applications• Main Arm: Stamped steel, accommodates reveals up to 3 1/4", adjustable extension arm• Spring Power: Spring power adjustable size 1 - 6 standard for interior and exterior applications• Backcheck: Adjustable, hydraulic - providing cushioning and preventing uncontrolled openings of the door• Valves: Adjustable, independent, non-critical (sweep and latch), consistent closing speeds• Fasteners: Metal screws included for hollow metal and aluminum mounting applications. Wood screws included for wood door mounting applications. Closers are packed with thru-bolts• Door Range: Up to 180 degrees• Door Preparation: 12" horizontal and 3/4" vertical mounting hole locations (retrofits traditional closer)• Performance: Complies with ANSI A156.4, Grade 1, 2 million cycles, UL/ULC listed up to 3 hours fire rated.Optional Features• Covers High impact plastic streamlined cover• Covers Plated kit: cover, arm & bracket.